Abstract: A speaker's fast installation assembly includes one ring portion and a plurality of fixing units. Each fixing unit includes an upper cylindrical portion, a lower cylindrical portion and a spring. Each lower cylindrical portion has an L shape and includes a vertical cylindrical part and a horizontal part, which horizontally extends from a lower portion of the vertical cylindrical part.

Abstract: A speaker's fast installation assembly includes one ring portion and a plurality of fixing units. Each fixing unit includes an upper cylindrical portion, a lower cylindrical portion and a spring. Each lower cylindrical portion has an L shape and includes a vertical cylindrical part and a horizontal part. The speaker's fast installation assembly is structurally simple, safe and sturdy and has a longer service life. Because most of its parts may be manufactured by injection molding, its cost is relatively lower. In addition, its installation and disassembly are simple and easy; therefore, efficiency is greatly enhanced. Moreover, no damage would be done to the ceiling in its installation and disassembly. Furthermore, it may be installed in ceilings and walls in a wide range of thickness.